楊麗平 趙翠 敖金成 李吉光 宗建華 鄭仕方



摘 要:以云煙87中等施氮水平為對照,研究新引烤煙品種云煙207適宜的施氮水平。結果表明:與云煙87相比,當施氮水平為75~105 kg/hm2時,云煙207整體生長勢強,經濟性狀較好,煙葉外觀質量綜合指數提高4.2%,但化學成分協調性稍欠且生育期延遲。綜合來看,在保障正常生長發育和煙葉產質量的基礎上,以施氮量105.0 kg/hm2左右較有利于云煙207在曲靖煙區的優質適產。
關鍵詞:云煙207;烤煙;施氮水平;產質量;常規化學成分
中圖分類號:S572 文獻標識碼:A 文章編號:1006-060X(2017)01-0037-04
Abstract:Taking Yunyan 87 as the contrast, suitable application nitrogen levels of new flue-cured tobacco variety Yunyan 207 was studied. The results showed that, compared with Yunyan87, the growing of Yunyan 207 was stronger, and the economic traits were better, tobacco leaves appearance quality index increased by 4.2%. However, the chemical composition of the coordination was less impressive, and growth period was longer. Illustrating N application around 105.0 kg/hm2 is conducive and high-quality for Yunyan 207 which can get a good economic characters and improve tobacco leaves quality on the basis of normal growth and development.
Key words:Yunyan 207; flue-cured tobacco; level of nitrogen fertilizer; yield and quality; conventional chemical composition
近年來,烤煙品種退化現象較為突出,加劇了工商供需矛盾。通過培育和篩選適合特定區域的新品種,可在一定程度上解決品種類型的局限性和單一化難題,滿足工業多元化需求[1]。氮素是調控烤煙生長發育和產質量形成的重要物質基礎[2-3],一定范圍內,增加施氮量能提高煙葉產量,改善煙葉品質,提高經濟效益[4-5],增強烤煙打頂期中部葉片的光合響應[6],氮肥施用過多或過低均不利于煙株生長發育和品質的形成[7-8]。大量研究表明,植煙區域不同,烤煙施氮水平不同[9-11]。因此,要實現煙葉的優質生產,科學的氮肥管理至關重要。目前,國內外對烤煙新品種施肥技術研究較多[12-13],關于烤煙新品種云煙207在云南省曲靖煙區的氮肥施用技術鮮見報道。試驗以烤煙品種云煙87為參照,研究了不同施氮水平對烤煙新品種云煙207的生長發育及煙葉品質的影響,以期為制定烤煙新品種云煙207在曲靖生態煙區施肥水平及其推廣種植提供參考依據。……